US2763330A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Laterally adjustable treads for crawler cranes
Assignee: American Hoist and Derrick Co
•
Filing: 1955-03-02
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Granted: 1956-09-18
•
Expires: 1975-03-02
Abstract
No abstract record available.
Inventors
- 👤 Kenneth F Potter
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 23:21
CPC Classifications
B; B62; B62D; B62D55/00; B62D55/08; B62D55/084; Y; Y10; Y10T; Y10T403/00; Y10T403/32; Y10T403/32254; Y10T403/32426
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1773252A
Cited
US2218258A
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US2318802A
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US2400505A
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GB613996A
Cited
US2681231A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-09-18 | 1960-03-19 | 1960-09-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-09-18 | 1964-03-19 | 1964-09-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-09-18 | 1968-03-19 | 1968-09-18 | $7700.00 | Window Closed / Lapsed |